Tool for grasping and holding articles



2 Sheets-Sheet- 1 (No Model.)

J. GOODRIOH.

TOOL FOR GRASPING AND HOLDING ARTICLES. No. 308,356.

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(No Model.) 2 SheetS-Sl1eet2.

J. GOODRIICH.

TOOL FOR GRASPING AND HOLDING ARTICLES. v No. 308,856. Patented Nov.25.41884.

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are STATES FFIQEO TOOL FORGRASPING AND HOLDING ARTICLES.

SPECIFICATION forming part of Letters Patent No. 308,356, dated November25, 1884.

Application filed May 19, 1883. (No model.)

.To aZZ whom it may concern.-

Be it known that I, JosEPH GOODRIOH, a citizen of the United States,residing at Henry, Marshall county, Illinois, have invented certainImprovements in Tools for Grasping and Holding Articles, of which thefollowing is a specification.

My invention relates, mainly, to improve ments in that class of Visesand brace-wrenches IO which employ a tailscrew to spread the tails 0fthe jaws, being an improvement on the tool shown in my former patents.

The invention relates in part to the peculiar form and construction ofthe nuts employed, and in part to means for steadying the tails of thejaws to prevent distortion when the tool is subjected to torsionalstrains, and to take the strain ofi" from the tail-screw when a directpull longitudinally of the jaws is given to the It also relates to otherminor improvements.

My improvements are adapted to hand and bench Vises of all sizes, andalso to bracewrenches.

In the drawings which serve to illustrate my invention, Figure 1 is aside elevation, partly in section, showing the adaptation of myimprovements to a brace-wrench. Fig. 2 is a section of same on line 2 2in Fig. 1. Figs. 3

and 4 are respectively detached sectional 5 sectional view of the tailof the jaw.

0 tached sectional View taken on line 9 9 in Fig. 9, and Fig. 9 is asectional view of the nut. Fig. 10 illustratesa modification which willbe described hereinafter, and Fig. 10 is a side or edge view of same.

In my former patent I illustrated and described a tool of this characterin which the two jaws were closed together simultaneously on the objectto be grasped by means of a right-and-left-hand screw, and the tails ofthe jaws were spread by means of a similar screw.

Rocking nuts were also employed in order to permit the jaws to shift outof parallelism or to stand at an angle with each other. These featureswere all shown in my patent of May 18,1880, No. 227,686, and I do notclaim them k herein.

Referring now most particularly to Figs. 1 to 7, A A are the jaws, B, atubular central stock; O O, the guides on said stock between recessrequired to receive this form of nut was quite difficult to formin thejaw, and required special tools. To obviate this difficultylhavedesigned the nut herein shown, and which I will now describe,

My improved nut is spherical in form, with the hole for the screw boreddiametrically through it. The recess in the jaw (see Fig. 7) is alsomade spherical to fit the nut, and this may be formed or dressed out bymeans of an ordinary rose-drill or cherry.

In order to prevent the nut from turning in the jaw and to retain it inplace, several means may be adopted. The preferred form is thatillustrated in Figs. 1 to 6. I remove a portion of the exterior face ofthe nut and form inclined flattened faces I) b on its opposite sides.The sides of the jaw at the recess are quite thin, and when the nut isproperly set in the recess these thin sides are set in, as at 0, (seeFigs. 2 and 5,) so as to take over the flattened faces I) on the nut,and thus hold it in place. When the jaws are spread at the head or tailso as to be thrown out of parallelism, the screws D and E must approacheach other slightly, although they still remain parallel. To permit thismovement and yet mount the screws steadily in the stock B, I provide themeans Iwill now describe. The stock is made tubular, and one screw, thehead-screw D in Fig. 1, passes through a slotted aperture in the same,as best shown in Figs. 1 and 3. In the body of the screw is formed acircumfertial groove, and the reduced journal thus formed engages afork, d, in the end of a cylin- IOC drical piston, F, which fits snugly,but is free to slide in the bore of the stock. To maintain theengagement of the fork with the screw, the prongs of the same arepinched together slightly (see Fig. 4) after the fork is in place. InFig. 9 I have shown the piston F applied to the'tailscrew E.

I will now describe the means for steadying the tails of the jaws inorder to prevent torsion, to take the strain off the tail-screw, and atthe same time permit the jaws to be thrown out of parallelism at will.

Referring to Figs. 1, 2, and 7, G is a tailpiece formed with or securedto the stock I), and having a T-shaped cross-section, as shown in Fig.2. The tail of the jaw is cross-slotted to fit over and slide on thebearing 6 and provided with rounded lugs f f to take under theoverhanging flanges of e. The broad lateral bearing of the jaws on eprevents any torsion of the jaws; the lugs f take under the overhangingflanges of 6 when any longitudinal strain is brought on the jaws, andthus relieve the screw E; and the convex shape of the roof of thecross-slotin the tail of the jaw, as shown at g in Fig. 7, allows thejaws to be thrown out of parallelism to a limited but sufficient extent.It is not absolutely necessary to make the roof 9 convex. It might becut away so as to simply providea clearance; but I prefer it should havea support on the crown or top of the tail-piece G. The hand-vise shownin Fig. 8 differs from the tool shown in Fig.1 only in the stock B beingremoved, leaving only a stump, B, to serve as a bearing for thetail-screw. This vise is especiallywell suited for putting uptelegraph-wires. For such purposes the vise is clamped on the wire, andthe latter is strained by means of a strap attached to the bail h. Inthis case the strain would be thrown on the tail-screw if it were notfor the engagement of the lugs f under the flanges on the tail-piece.

Figs. 9, 9, and 9" illustrate the application of my improvements to alarger bench-vise, and aslight modification of the spherical nut a. Thisapplication differs from that already described only in the followingparticularsnamely: The stock B is secured to the bench I-I through themedium of the guides O G and the tail-piece G, the lugs f are omittedfrom the slots in the tails of the jaws, and the means employed forretaining the nuts in place differs slightly from that before described.In this construction I omit the beveled faces I) and recess the nut 011both sides in its axis of oscillation, When it is in place, I indent orset in the thin faces of the jaw with a punch, until the metal of thesame enters into the recesses in the nut. These retain the nut in placeand prevent it from turning with the screw. Either of these modes ofretaining the nut in place may be employed, and for all forms of tools.

In Figs. 9 and 9 I have lettered the recess in the nut b, and the pointwhere the metal of the jaw is set into it 0.

In Fig. 6 I have shown four flattened faces, I), on the nut, and eitherpair may be employed; but one pair will usually suflice. I

The tail-piece G inFig. 9 serves as an anvil or support for the jaws toreceive the impact of the blows struck on any object held in the vise.This relieves screw E of the strain.

Figs. 10 and 10 illustrate a modification of my tail-piece G. In thisconstruction 0 is a cylindrical rod secured in a cross-bore in thetail-piece, or formed in one piece with the latter. This rod passesthrough holes in the tails of the jaws, as clearly shown, and servesboth to prevent torsion and to take, the strain off from the tail-screw.To permit the jaws to swing out of parallelism, the bores in the jawsare slightly flared above and below, but not at the sides. Other devicesof a character similar to these, and which will prevent the torsion ofthe jaws, may be employed. In fact, it is immaterial, except for economyin the manufacture, whether the jaw takes over the tail-piece or thetail-piece takes over a part of the jaw. I prefer the formerconstruction.

Having thus described my invention, I wish it understood that I do notherein claim, broadly, every form of oscillating or rocking nut for atool of this character; but

That I do claim is- 1. A tool for grasping and holding articles, havingjaws provided with spherical recesses to receive the nuts for thescrews, and spherical nuts made to fit into said recesses, boreddiametrically to receive the screws and secured in their places by themeans substantially as set forththat is to say, portions of the convexsurfaces of the nuts are cut away on opposite sides, and portions of thelateral faces of the jaws set into the recesses thus formed-asdescribed.

2. In a tool for grasping and holding articles, the jaws provided withspherical recesses to receive the nuts, in combination with the screwsand the spherical nuts a, provided with diametrical bores to receive thescrews, and with flattened and beveled faces, b, portions of the lateralfaces of the jaw being set or bent in, as shown, over the faces I), forthe purposes set forth.

3. A tool for grasping and holding articles, provided with a tubularstock, B, a forked piston, F, and a screw provided with acircumferential groove to engage said fork, and all arranged to operatesubstantially as and for the purposes set forth.

4. As a means for preventing the torsion of the jaws of a tool forgrasping and holding articles, a tail-piece rigidly connected with thestock or part in which the tail-screw is mounted, and arranged to engagethe tails of the jaws and provide a guide therefor in the movement ofthe jaws to and from each other, substantially as set forth.

5. As a means for preventing the torsion of the jaws A of the tool, andalso for relieving the strain on the tail-screw, the tail-piece G,connected rigidly with-the stock or part in I the tai1piece G, the saidtail-piece constructwhich the tail-screw is mounted, and provided edsubstantially as described, and the tails of with a laterally-flangedbearing, 6, and the the jaws constructed to engage the same, subjawprovided with cross-slots to engage said stantially as and for thepurposes set forth. 15

5 bearing, and with lugs f to take under the I 111 witness whereof Ihave hereunto signed projecting flanges of the same, substantially myname in the presence of two subscribing as set forth. Witnesses.

6. The combination, in a tool for grasping JOSEPH GOODRICH. and holdingarticles, of the jaws, the head and \Vitnesses: 1o tail screws, andsuitable rocking nuts, of the HENRY CONNETT,

tubular stock B, the forked piston F, and GEO. BAINTON.

